the best "budget" machine ive seen is the Antari one, i have a couple on the hires, it has a big output and not too much spillage. Ive tried all teh DJ grade fluids, skytec, ADJ, Prolight and Prolight was the best for me, lots of bubbles and least residue on the floor

but heres a spanner in the works....i needed some in a hurry at a strange time of day! Tescos sell 1Litre bottles really cheap, its often on special for £1-2, yet its brilliant! The bubbles seem smaller, but more numerous and i seem to get very little mess on the floor (the problem area is usually immediately in front of the machine) and this isnt a problem!